"especially after seeing the 50's era computer sized reversing "board" in the tender in another post on here"
These locos were made in the late 80's - early 90's, so there's nothing "50's" about the electronics; in fact, consumer "electronics" barely existed in the 1950's.
But big? Oh, yeah.
Samhongsa (Williams and Weaver) brass locos are gems, only a little rough around the edges.